/Engine/Source/Runtime/UMG/Public/Components/Viewport.h
class FUMGViewportClient : public [FCommonViewportClient](API\Runtime\Engine\FCommonViewportClient), public [FViewElementDrawer](API\Runtime\Engine\FViewElementDrawer)
FLinearColor
BackgroundColor
FEngineShowFlag...
EngineShowFlags
A set of flags that determines visibility for various scene elements.
FPreviewScene&...
PreviewScene
The scene used for the viewport. Owned externally
FMinimalViewInf...
ViewInfo
FViewport*
Viewport
FSceneViewState...
ViewState
The viewport's scene view state.
FUMGViewportCam...
ViewTransform
Viewport camera transform data